Window regulator



Nov. 17, 1925- E. G. SIMPSON v wnmow REGULATOR Filed July 192:

2 Sheets-Sheet 17I/IIIII/II/IflfllIIIIIIIIIIIII/IIIIIIIIflII/IIIIIIIIIIIIIII l Nov. 17,1925- v 1,561,749

E. G. SIMPSON WINDOW REGULATOR Filed Ju y 1922 2 Sheets-Sheet 2 y 1/1 1ulu/10111011111065 gavleniom Patented Nov. 17, 1925.

UNITED STATES PATENT OFFICE.

EMORY GLENN SIMPSON, OF DETROIT, MICHIGAN, ASSIGNOR TO FISHER BODY COR-PORATION, OF DETROIT, MICHIGAN. A CORPORATION OF NEW YORK.

WINDON REGULATOR.

Application filed July 17, 1922. Serial No. 575,460.

T 0 all whom, it may concern Be it known that I. Eirour GLENN SurrsoN, acitizen of the United States, residing at Detroit. in the county oflVayne and State of Michigan, have invented certain new and usefulImprovements in lVindow Regulators, of which the following is aspecification.

This invention relates to window regulators and has for its object aneffective but cheap construction in window regulators which will enablea regulator to be used on a cheaper class of cars. Regulators heretoforehave not been used on the cheaper grade of automobiles because of theircost, the chain and clutch construction used in "ordinary regulatorsbeing such an expense as has disinclined manufacturers of low pricedcars to adopt window regulators as standard equipment.

It is the object of the present invention to provide a window regulatorthat can be manufactured much cheaper than the standard regulator nowused on cars and which in a measure embodies allthe main featuresincorporated in the expensive regulators.

The regulator is provided with a cable in place of a chain for carryingthe window and is provided 'with a special lifting pin andpulley-construction which firmly locks the window against side play whenthe lifting pin engages with the pulley.

In place of the ordinary positive locking clutch a friction clutch isused in combination with a driving pinion having a high ratio of speedreduction with the driven gear. This provides a lock suitable for mostconditions.

In the drawings,

Fig. 1 is an inside elevation showing the door with the upholsteringbroken away.

Fig. 2 is a section taken on the line 22 of Fig. 8. s

Fig. 3 is an elevation of a regulator.

Fig. i is a vertical section taken on the line 4-4 of Fig. 3. v

Fig. 5 is a horizontal cross section similar to Fig. 2 showing amodified form of the invention in which an extra gear is interposed toprovide a handle further offset from the vertical center line of thedoor.

Fig. 6 .is a perspective detail of the lifting pin.

The reference character a designates the lock board of the door which issuitably inortised or recessed at b to let the regulator parts through.A. supporting plate 0 is provided with a pressed in center portion 10having the pressed out bearing (Z to support the shaft 6. This shaft issupported at its othcrend by a housing plate f. A driven gear 18 castupon the shaft and on its side is provided with a pulley wheel 72. whichis an integral part of the wheel and which is provided with an annular Vgroove 7' on which winds the cable 2'. This cable 21 has a lifting pinis soldered thereto by a hard solder. The pin is shaped to form aprojection m in the form of a V-like anchoring lug 11, which serves tosecurely anchor the pin in the pulley wheel groove when the pin is drawnover the pulley wheel.

,prevents any side play of the window.

The window bracket is designated at and is provided with the usual crossslot 0 to al- This low the lifting pin to travel across the a into thehousing r, this screw is made fast to prevent turning. Hence by simplyturn ing the barrel nut w the compression of the spring may be alteredto change the clutch plate pressure. This makes a very convenientadjustment as the barrel nut is located directly at the side of theescutcheon plate which is fastened to the socket 10. Hence by removinthe escutcheon plate and pulling the trimming 13 slightly out of the waythe barrel nut may be reached by a screw-driver inserted through thehole left in the trimming material for the escutchcon plate. 7

The driving pinion is provided with a hub q set in the bearing r,pressed out of the housing plate 8. Splined on to the teeth of this gearis a friction plate or clutch plate t. This is pressed against theinside of the housing 8 by means of a clutch plate u. which and thedriving pinion serve to hold the window up under all ordinary load andconsequently will, in a measure, do the work of a positive lockingclutch which is much more expensive and complicated.

The cable 2' is a strong cotton center tinned air-craft cable. The endsof the cable an spread and soldered to the lifting pin by a hard solder.The cable is much cheaper construction than the ordinary chain. I amaware that cables have been used heretofore in connection with windowlifters but as far as I know no one has combined an endless wire cableand lifting pin so arranged with the pulley wheel that the window issecurely locked and anchored from shifting sidewise on the pulley wheel.

I am also aware that it is old to use a friction clutch with a suitablereleasing device which releases the clutch parts on the initial movementof the actuating handle. However so far as I am aware it is new toarrange a constant friction device with suitably proportioned drivingpinion and driven gear whereby the clutch and the gear cooperate tointerpose ample resistance to the descent of the window, but providesuch a large leverage that the friction does not seriously interferewith the raising of the window when the same is raised by a rotation ofthe handle.

hat I claim is:

1. In a window regulator, the combination of a supporting member, arelatively large rotatable driven member, connections therewith forlifting the window, a relatively small rotatable driving member having adriving relation with the driven memher to reduce the rotations of thedriven member considerably with relation to the rotations of the drivingmember, and a mul tiple plate friction clutch for interposing resistanceto the operation of the regulator parts by forces coming from the windowin conjunction with the resistance achieved by the adverse leverageexisting through the proportions of the driving and the driven members.

2. In a window regulator, the combination of a pulley wheel having agroove therein of defined cross section, a draft member running oversaid pulley wheel and engaging in said groove, and a lifting pin securedto the draft member and for lifting the window and having projectingtherefrom a pro jection of a cross section corresponding to the definedcross section of'the groove of the pulley wheel to anchor the pinsecurely on the pulley wheel when the same is being drawn over thepulley wire. a

3. In a window regulator, the combination of a pulley wheel having agroove of V-.

cross section, a draft member running over the pulley wheel and engagingin the said groove, and a lifting member secured to the draft member andhaving a part with a V-like configuration complementary to the crosssection of the said groove whereby the lifting member is locked againstlateral movement as it runs over the pulley wire.

In testimony whereof I affix my signature.

EMORY GLENN SIMPSON.

